Disclaimer
Excel VBA Made Easy - A Complete Tutorial for Beginners is an independent
publication and is not affiliated with, nor has it been authorized, sponsored, or
otherwise approved by Microsoft Corporation.

Trademarks
Microsoft, Visual Basic, Excel and Windows are either registered trademarks or
trademarks of Microsoft Corporation in the United States and/or other countries.

Liability
The purpose of this book is to provide basic guideline for people interested in Excel
VBA programming. Although every effort and care has been taken to make the
information as accurate as possible, the author shall not be liable for any error, harm
or damage arising from using the instructions given in this book.

CopyrightÂŠ Liew Voon Kiong 2009. All rights reserved. No part of this book may be
reproduced or transmitted in any form or by any means, without permission in writing
from the author.

III

Acknowledgement
I would like to express my sincere gratitude to many people who have made their
contributions in one way or another to the successful publication of this book.
My special thanks go to my children Xiang, Yi and Xun. My daughter Xiang edited
this book while my sons Yi and Xun contributed their ideas and even wrote some of
the sample programs for this book. I would also like to appreciate the support
provided by my beloved wife Kim Huang and my youngest daughter Yuan. I would
also like to thank the million of visitors to my Excel VBA Tutorial website at
http://excelvbatutor.com/ for their support and encouragement.

About the Author
Dr. Liew Voon Kiong holds a bachelor degree in Mathematics, a master degree in
management and a doctoral degree in business administration .He has been
involved in programming for more than 15 years. He created the popular online
Visual Basic Tutorial at www.vbtutor.net in 1996 and since then the web site has
attracted millions of visitors and it is one of the top searched Visual Basic websites
in many search engines including Google. In order to provide more support for Excel
VBA hobbyists, he has written this book based on his online Excel VBA tutorial at
http://excelvbatutor.com/. He is also the author of Visual Basic 6 Made Easy,
Visual Basic 2008 Made Easy and Visual Basic 2010 Made Easy.

IV

TABLE OF CONTENTS
Chapter 1

Chapter 2

Chapter 3

Chapter 4

Chapter 5

Chapter 6

Chapter 7

Chapter 8

Introduction to Excel VBA

1

1.1 The Concept of Excel VBA

1

1.2 The Visual Basic Editor in MS Excel

2

1.3 The Excel VBA Code

5

Managing Data in Excel VBA

7

2.1 Data Types in Excel VBA

7

2.2 Managing Variables

11

2.3 The Use of Option Explicit

14

2.4 Assigning Values to Variables

15

2.5 Performing Arithmetic Operations in Excel VBA

16

Array

19
3.1 What is an Array?

19

3.2 Declaring Arrays in Excel VBA

19

Using Message box and Input box in Excel VBA

24

4.1 The MsgBox( ) Function

24

4.2 The InputBox( ) Function

29

Controlling Program Flow in Excel VBA

31

5.1 Conditional Operators

31

5.2 Logical Operators

32

5.3 The If...Then...Elseif...Else Decision Structure

32

5.4 The Select Case....End Select Decision Structure

37

Looping

39

6.1 The For...Next Loop

39

6.2 The Do... Loop

45

6.3 The While...Wend Loop

48

Excel VBA Objects Part 1–An Introduction

50

7.1 What is Excel an Excel VBA object?

50

7.2 Properties and Methods

52

Excel VBA Objects Part 2 –The Workbook Object

58

V

Chapter 9

Chapter 10

Chapter 11

Chapter 12

8.1 The Workbook Properties

58

8.2 The Workbook Methods

60

Excel VBA Objects Part 3 –The Worksheet Object

63

9.1 The Worksheet properties

63

9.2 The Worksheet Methods

65

Excel VBA Objects Part 4–The Range Object

68

10.1 The Range Properties

68

10.2 The Range Methods

72

Working with Excel VBA Controls

76

11.1 Check Box

76

11.2 Text Box

78

11.3 Option Button

79

11.4 List Box

82

11.5 Combo Box

83

11.6 Toggle Button

84

Functions and Sub Procedures

85

12.1 The Concept of Function

85

12.2 Types of Functions

85

12.3 Writing Function Code

85

12.4 Passing Variables by Reference and by Value in a

91

Function
12.5 Sub Procedure
Chapter 13

Chapter 14

String Handling Functions

93
96

13.1 InStr

96

13.2 Left

96

13.3 Right

96

13.4 Mid

96

13.5 Len

97

Date and Time Functions

99

14.1 Using the Now ( ) Function

99

14.2 Various Date and Time Functions

100

14.3 DatePart Function

102

14.4 Adding and Subtracting Dates

103

VI
Chapter 15

Sample Excel VBA Programs

105

15.1 BMI Calculator

105

15.2 Financial Calculator

106

15.3 Investment Calculator

108

15.4 Prime Number Tester

109

15.5 Selective Summation

111

15.6 Animation

112

7

Chapter 1
Introduction to Excel VBA
Getting to know the concept of Excel VBA
Learn how to use Visual Basic Editor in MS Excel
Learn how to write simple Excel VBA code

1.1 The Concept of Excel VBA
VBA is the acronym for Visual Basic for Applications. It is an integration of the
Microsoft's event-driven programming language Visual Basic with Microsoft
Office applications such as Microsoft Excel, Microsoft Word, Microsoft
PowerPoint and more. By running Visual Basic IDE within the Microsoft Office
applications, we can build customized solutions and programs to enhance the
capabilities of those applications.
Among the Visual Basic for applications, Microsoft Excel VBA is the most popular.
There are many reasons why we should learn VBA for Microsoft Excel, among
them is you can learn the fundamentals of Visual Basic programming within the
MS Excel environment, without having to purchase a copy of Microsoft Visual
Basic software. Another reason is by learning Excel VBA; you can build custom
made functions to complement the built-in formulae and functions of Microsoft
Excel. Although MS Excel has a lot of built-in formulae and functions, it is still not
enough for certain complex calculations and applications. For example, it is very
hard to calculate monthly payment for a loan taken using Excel's built-in formulas,
but it is relatively easy to program a VBA for such calculation. This book is written
in such a way that you can learn VBA for MS Excel in an easy manner, and
everyone shall master it in a short time!

8
You can program Excel VBA in every version of Microsoft Office, including MS
Office 97, MS Office2000, MS Office2002, MS Office2003, MS Office XP and MS
Office 2007. The reason VBA is needed is due to the limitations in using the builtin functions of MS Excel and macro recording. By using VBA, you can build some
very powerful tools in MS Excel, including financial and scientific applications
such as getting financial data from the Internet as well as linear programming.

1.2 The Visual Basic Editor in MS Excel
There are two ways which you can start programming VBA in MS Excel. The
first way is to place a command button on the spreadsheet and start
programming by clicking the command button to launch the Visual Basic Editor.
The second way is to launch the Visual Basic Editor by clicking on the Tools
menu then select Macro from the drop-down menu and choose Visual Basic
Editor. Lets start with the command button first. In order to place a command
button on the MS Excel spreadsheet, you need to click View on the MS Excel
menu bar and then click on toolbars and finally select the Control Toolbox after
which the control toolbox bar will appear, as shown in Figure 1.1. Then you click
on the command button and draw it on the spreadsheet, as shown in Figure 1.2.

9

Figure 1.1: Displaying Control Toolbox in MS Excel.

10

Figure 1.2: The Command Button in Design Mode

Now you select the command button and make sure the design button on the far
left of the control toolbox is depressed. Next, click on the command button to
launch the Visual Basic Editor. Enter the statements as shown in figure 1.3. Let’s
write out the code here:
Example 1.1
Private Sub CommandButton1_Click ()
Range (“A1:A10).Value=”Visual Basic “
Range (“C11”).Value=Range (“A11”).Value +Range (“B11”).Value
End Sub
The first statement will fill up cell A1 to cell A10 with the phrase "Visual Basic"
while the second statement add the values in cell A11 and cell B11 and then
show the sum in cell C11. To run the program, you need to exit the Visual Basic

11
Editor by click the Excel button on the far left corner of the tool bar. When you
are in the MS Excel environment, you can exit the design mode by clicking the
design button, then click on the command button.

Figure 1.3: The Visual Basic Editor IDE in MS Excel

Running the above VBA will give you the following output.

12

Figure 1.4:

1.3 The Excel VBA Code
Writing Excel VBA code is almost exactly the same as writing code in Visual
Basic, which means you have to use syntax similar to Visual Basic. However,
there are codes specially designed for use in MS Excel, such as the use of the
object or function called Range. It is the function that specifies the value of a cell
or a range of cells in MS Excel spreadsheet. The format of using Range is as
follows:
Range (“cell Name”).Value=K or Range (“Range of Cells”).Value=K
Where Value is the property of Range and k can be a numeric value or a string
Example 1.2
Private Sub CommandButton1_Click ()

13
Range (“A1”).Value= “VBA”
End Sub
The above example will enter the text “VBA” into cell A1 of the MS Excel
spreadsheet when the user presses the command button. You can also use
Range without the Value property, as shown in Example 1.3:
Example 1.3
Private Sub CommandButton1_Click ()
Range ("A1") = 100
End Sub
In the above example, clicking the command button with enter the value of 100
into cell A1 of the MS Excel spreadsheet.
The follow example demonstrates how to input values into a range of cells:

Chapter 2
Managing Data in Excel VBA
Getting to know various data types in Excel VBA
Learn how to declare variables and assigning values to them
Getting to know various arithmetic operators in Excel VBA
Learn how to write code that perform arithmetic operations in Excel VBA

15

In our daily life, we come across many types of data. For example, we need to
handle data such as names, addresses, money, dates, stock quotes, statistics
and more everyday. Similarly, in Excel VBA, we have to deal with all sorts of data;
some are numeric in nature while some are in the form of text or other forms.
Excel VBA divides data into different types so that it is easier to manage when
we need to write the code involving those data.
2.1 Data Types in Excel VBA
Excel VBA classifies the information mentioned above into two major data types;
namely the numeric data types and the non-numeric data types.
2.1.1 Numeric Data Types
Numeric data types are types of data that consist of numbers, which you can
compute them mathematically with various standard operators such as, add,
minus, multiply, divide and so on. Examples of numeric data types are your
examination marks, your height and your weight, the number of students in a
class, share values, price of goods, monthly bills, fees and more. In Excel VBA,
we divide numeric data into seven types, depending on the range of values they
can store. Calculations that only involve round figures or data that do not need
precision can use Integer or Long integer in the computation. Programs that
require high precision calculation need to use Single and Double decision data
types, we also call them floating-point numbers. For currency calculation, you
can use the currency data types. Lastly, if even more precision is requires which
involve many decimal points, we can use the decimal data types. We
summarized the data types in Table 2.1
Table 2.1: Numeric Data Types
Type

Storage Range of Values

16
Byte

1 byte

0 to 255

Integer

2 bytes

-32,768 to 32,767

Long

4 bytes

-2,147,483,648 to 2,147,483,648

Single

4 bytes

-3.402823E+38 to -1.401298E-45 for negative values
1.401298E-45 to 3.402823E+38 for positive values.
-1.79769313486232e+308 to -4.94065645841247E-324 for

0 to 2 billion characters
January 1, 100 to December 31,
9999
True or False

17
Object

4 bytes

Any embedded object

Variant(numeric)

16 bytes

Any value as large as Double

Variant(text)

Length+22 bytes

Same as variable-length string

2.1.3 Suffixes for Literals
Literals are values that you assign to a data. In some cases, we need to add a
suffix behind a literal so that VB2010 can handle the calculation more accurately.
For example, we can use num=1.3089# for a Double type data. Some of the
suffixes are displayed in Table 2.3.
Table 2.3: Suffixes for Literals
Suffix
&
!
#
@

Data Type
Long
Single
Double
Currency

In addition, we need to enclose string literals within two quotations and date and
time literals within two # sign. Strings can contain any characters, including
numbers. The following are few examples:
memberName="Turban, John."
TelNumber="1800-900-888-777"
LastDay=#31-Dec-00#
ExpTime=#12:00 am#
2.1.4 User-Defined Types
Besides the above data types, you too can create your own data type. You define
a new data type by combining the built-in data types mention above. The format
to define a data type is
Type variable_name

18
Statements
End Type
You need to define the user-defined type in the general declaration area of a
module. Let look at Example 2.1.

Example 2.1
Type Student
StuName As String
StuID As String
StuFee As Currency
StuYear As String
End Type
Now you have created a new data type called Student which carries information
such as name, student ID, fee and Year.
To make use of the above data, you can use the Dim keyword and the format is
as follows:
Dim group As Student
group.StuName = "James"
group.StuID = "1007"
group.StuYear = "Final Year"
group.StuFee = "$20,000"
Cells(2, 2) = group.StuName
Cells(3, 2) = group.StuID
Cells(4, 2) = group.StuYear

19
Cells(5, 2) = group.StuFee

To test the above code, open a new workbook and enter the above code in the
VBE. Running the VBA will enter the student information into the cells specified
in the code, as shown in Figure 2.1

Figure 2.1

2.2 Managing Variables
Variables are like mail boxes in the post office. The contents of the variables
changes every now and then, just like the mail boxes. In Excel VBA, variables
are areas allocated by the computer memory to hold data. Like the mail boxes,
each variable must be given a name. To name a variable in Excel VBA, you have
to follow a set of rules, as follows:

20

2.2.1 Variable Names
The following are the rules when naming the variables in Excel VBA
It must be less than 255 characters
No spacing is allowed
It must not begin with a number
Period is not permitted
Examples of valid and invalid variable names are displayed in Table 2.4

2.2.2 Declaring Variables
In Excel VBA, we need to declare the variables before using them by assigning
names and data types. You can declare the variables implicitly or explicitly. For
example, sum=text1.text means that the variable sum is declared implicitly and
ready to receive the input in textbox1. Other examples of implicit declaration are
volume=8 and label=â&#x20AC;?Welcomeâ&#x20AC;?. On the other hand, for explicit declaration,
variables are normally declared in the general section of the code window using
the Dim statement.
The format is as follows:
Dim variableName as DataType

21

Example 2.2
Dim
Dim
Dim
Dim
Dim
Dim

password As String
yourName As String
firstnum As Integer
secondnum As Integer
total As Integer
BirthDay as Date

You may also combine them in one line, separating each variable with a comma,
as follows:
Dim password As String, yourName As String, firstnum As Integer.
If the data type is not specified, VBE will automatically declare the variable as a
Variant. For string declaration, there are two possible formats, one for the
variable-length string and another for the fixed-length string. For the variablelength string, just use the same format as Example 2.1 above.
However, for the fixed-length string, you have to use the format as shown below:

Dim VariableName as String * n

Where n defines the number of characters the string can hold. For example, Dim
yourName as String * 10 mean yourName can hold no more than 10 Characters.

Example 2.2
In this example, we declared three types of variables, namely the string, date and
currency.

2.3 The use of Option Explicit
The use of Option Explicit is to help us to track errors in the usage of variable
names within a program code. For example, if we commit a typo, the VBE will
pop up an error message â&#x20AC;&#x153;Variable not definedâ&#x20AC;?. Indeed, Option Explicit forces
the programmer to declare all the variables using the Dim keyword. It is a good
practice to use Option Explicit because it will prevent us from using incorrect

23
variable names due to typing errors, especially when the program gets larger.
With the usage of Option Explicit, it will save us time in debugging our programs.
When Option Explicit is included in the program code, all variables need to be
declared using the Dim keyword. Any variable not declared or wrongly typed will
cause the program to popup the “Variable not defined” error message. The error
needs to be corrected before the program can continue to run.
Example 2.3
This example uses the Option Explicit keyword and it demonstrates how a typo is
being tracked.
Option Explicit
Private Sub CommandButton1_Click ()
Dim YourName As String
Dim password As String
YourName = "John"
password = 12345
Cells(1, 2) = YourNam
Cells (1, 3) = password
End Sub
The typo is YourNam and so the error message ‘variable not defined” will be
displayed and the program is suspended, as shown in Figure 2.3.

24

Figure 2.3: Error message due to typo error

2.4 Assigning Values to the Variables
After declaring various variables using the Dim statements, we can assign values
to those variables. The general format of an assignment is
Variable=Expression
The variable can be a declared variable or a control property value. The
expression could be a mathematical expression, a number, a string, a Boolean
value (true or false) and more. The following are some examples:
firstNumber=100
secondNumber=firstNumber-99
userName="John Lyan"
userpass.Text = password
Label1.Visible = True

25
Command1.Visible = false
ThirdNumber = Val(usernum1.Text)
total = firstNumber + secondNumber+ThirdNumber
2.5 Performing Arithmetic Operations in Excel VBA
In order to compute input from the user and to generate results in Excel VBA, we
can use various mathematical operators. In Excel VBA, except for + and -, the
symbols for the operators are different from normal mathematical operators, as
shown in Table 2.5.
Table 2.5: Arithmetic Operators
Operator Mathematical function

Example

^

Exponential

2^4=16

*

Multiplication

4*3=12

/

Division

12/4=3

Mod

Modulus (return the remainder from an
integer division)
Integer Division (discards the decimal

In example 2.4, three variables are declared as single and another two variables
are declared as variant. Variant means the variable can hold any numeric data
type. The program computes the total and average of the three numbers that are
entered into three cells in the Excel spreadsheet.
Example 2.5
Option Explicit
Private Sub CommandButton1_Click ()
Dim secondName As String
Dim yourName As String
firstName = Cells (1, 1).Value
secondName = Cells (2, 1).Value
yourName = firstName + " " + secondName
Cells(3,1) = yourName
End Sub

In this example, three variables are declared as string. The variable firstName
and the variable secondName will receive their data entered by the user into
Cells (1, 1) and cells (2, 1) respectively. The variable yourName will be assigned
the data by combining the first two variables. Finally, yourName is displayed on
Cells (3, 1). You will notice that performing arithmetic operation on strings will

27
result in concatenation of the strings, as shown in figure 2.4 below. Names in A1
and A2 are joined up and displayed in A3.